I work in an international school, so different rules, but full of expats so same culture if you like. I started a few years ago and was the first in my department. Since then, another teacher from the same school moved over to my department. The head of department job was advertised, we both applied and I got it. When I got it, the Director called me in and told me that they had had some trouble in the past with my colleague and that she was not a team player etc. My relationship with her has always been pretty professional, but maybe a little tense.
Personally speaking, I don't like her and I sure it is mutual. But of course I try to be professional and I think I have managed to keep it that way. I have recently heard gossip that she is sleeping with the Director, who is married to another teacher at the school. I have no idea if this is true. I know that she has suggested to management that we have had disagreements in work, but I am not sure exactly what she is referring too.
Anyway, apologies for the length, but she is the worst teacher I have ever seen. I share a room with her and sit through her lessons, they are awful. She is regularly on the phone, or has her headphones in, the content is awful, she treats the students badly and teaches them nothing. As HOD I am not her manager, just the curriculum coordinator, but I am finding it hard to sit on this any longer. Should I raise it? Or should I just keep an easy life?